Positioning module IMD20, IMD40
CanOpen protocol
Profile Position Mode – position control with ramp profile
ssing of a segment, the parameters for the next
s made during the transfer of the segments.
In
4 move
The data for the second segment
ompleted. After
th
of the motion parame
is set in Control word in
o
l the drive to apply th
nch the movement. The
c
s the acknowled
Status word (Setpoint Acknowledge).
If Bit
control word
owledge
a
that it is prepa
fter the second movement segment was launched, the master immediately begins with the transfer
o
ovem
t and sets Bit 4 in the control word. The drive module applies
t
the c
ent and simultaneously starts the new movement.
Likewise, Segment 4 is dir
Segment 3; the drive, however, does not brake, since in
Segment 3 the final velocity
In the Profile Position Mode, a motion segment can be allocated to the drive module which the
controller automatically realises. During the proce
movement can already be set, so that individual segments can be lined up seamlessly.
The setting of the individual movement segments is realised via the parameters
Target position,
Segment velocity, Final velocity
and
Acceleration
, the same values being used for acceleration
and braking ramps.
Via
Control word
and
Status word
a handshake i
the following illustration,
ment segments are executed after each other.
are transferred only, after the first segment was c
e transfer
rder to tel
ter, the respective Bit 4 (New Setpoint)
e new movement parameters and to lau
ontroller confirm
gement with the Bit 12 in the
4 is reset in the
nd signalises thus
, the drive replies with the revocation of the Setpoint Ackn
red to transfer further data.
A
f data for the third m
he data at the end of
ent segmen
urrent segm
ectly put after
is identical to the segment velocity.
If, in
m
addition to Bit
em
4, Bit 5 is set in the cont
t is interrupted and th
celera
rol word (Change Set Immediately), the current
ov
en
ion of a new segment is immediately started with. Here, the
system ac
tes or brakes down to the new segment velocity according to the ramp set.
Targe
Index Sub Name
Attrib Map Default
value
Meaning
e execut
t position
Type
607A
00
Target position
2
RW
Y
0
Target position of a
movement segment in
user-defined units.
Signed 3
105